138402992
138,402,992 is an even composite number composed of five prime numbers multiplied together.
138402992 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 138402992:
24 × 7 × 13 × 19 × 5003
(2 × 2 × 2 × 2 × 7 × 13 × 19 × 5003)See below for interesting mathematical facts about the number 138402992 from the Numbermatics database.
Names of 138402992
- Cardinal: 138402992 can be written as One hundred thirty-eight million, four hundred two thousand, nine hundred ninety-two.
Scientific notation
- Scientific notation: 1.38402992 × 108
Factors of 138402992
Divisors of 138402992
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 7 8 13 14 16 19 26 28 38 52 56 76 91 104 112 133 152 182 208 247 266 304 364 494 532 728 988 1064 1456 1729 1976 2128 3458 3952 5003 6916 10006 13832 20012 27664 35021 40024 65039 70042 80048 95057 130078 140084 190114 260156 280168 380228 455273 520312 560336 665399 760456 910546 1040624 1235741 1330798 1520912 1821092 2471482 2661596 3642184 4942964 5323192 7284368 8650187 9885928 10646384 17300374 19771856 34600748 69201496 138402992
- Sum of all divisors σ(n): 347477760
- Sum of proper divisors (its aliquot sum) s(n): 209074768
- 138402992 is an abundant number, because the sum of its proper divisors (209074768) is greater than itself. Its abundance is 70671776
Bases of 138402992
- Binary: 10000011111111011100101100002
- Hexadecimal: 0x83FDCB0
- Base-36: 2AEGFK
Squares and roots of 138402992
- 138402992 squared (1384029922) is 19155388194552064
- 138402992 cubed (1384029923) is 2651163039047483757375488
-
The
square root of 138402992 is 11764.4800990099 -
The
cube root of 138402992 is 517.2674608503
Scales and comparisons
How big is 138402992?- 138,402,992 seconds is equal to 4 years, 20 weeks, 5 days, 21 hours, 16 minutes, 32 seconds.
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To count from 1 to 138,402,992 would take you about six years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 138402992 cubic inches would be around 43.1 feet tall.
Recreational maths with 138402992
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